How can I make this look like those humen anime fan arts?

The brothers

wise

This week's Fan Art Friday celebrates Undertale! Accept the quest in your quest log to get started.

Its somewhat ready but im getting this message right now....

woke up from a nap and immediately made this for no reason

Deep dark lore is near (yes i bought it.... it was taking to long what ya gonna do about it)

I may retire soon + anime version of me

ralsei!

Do i hear 500 followers and 30k likes pog???????!!??!!